Stave-tapering machine.



-N0.833,565. PATBNTBD ocT.1e,19os.

- W.H.voss.

STAVE TAPERING MACHINE.

APPLIGATIOH FILED umso, 1905.

a sHBETs-sann'r 1.

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PATENTED OCT. 16, 1906.

W. H. Voss. STAVB TAPERING MACHINE.

API-LIOATION FILED JAN. 30, 19Q5.

3 SHEETS-SHEET 2.

No. 833.565 v v PATENTED OCT. 16, 1906.

W. H. VOSS. STAVE TAPBRING MACHINE.

APPLICATION FILED JAN. 30, 1905.

3 SHEETS-SHEET 3.

.IMI fr `55 pulley C is located and is provi'dedwith a UNITED STATES PATENT OFFICE.

VILLIAM H. VOSS, OF DAVENPORT, IOWA.

STAVE-TAPERING MACHINE.

v Specification of Letters Patent.

Patented Oct. 16, 1906.

Application filed January 30, 1905. Serial No. 243.382.

To LZZ whom, it may concern:

Be it known that I, WILLIAM H. Voss, a

citizen of the United States, and a resident of i, chines, of which the following is a full, clear,

and exact description.

My invention relates to machines for tapering staves, particularly tubs, buckets, firkins, tc. and the object of my invention is to control the movement of a rotary cutter to and from the work as it moves -past the same as to tion of my invention.

get the exact shape or taper to the stave desired. This I accomplish by the means hereinafter fully described and as particularly pointed out in the claims. j

In the drawings, Figure l is a side eleva- Fig. 2 is a plan view of the same. Fig. 3 is a detail view of a section of the detachable link-chain conveyer.

Fig. 4 is a detail view showing the cam partly in section. Figs. 5 and 6 are also detail views, the former showing a portion of the bed of the machine in section and the latter a plan of a guard used in connection with the cutter. Fig. 7 is a rear elevation of my invention.

Referring to the drawings, A represents a suitable supporting-frame, the bed c of which, near to and parallel with one of its longitudinal edges, is provided with a 'longitudinal channel or runway c for' the upper stretch of an endless detachable link-chain .farthest from lthe sprocket b.

conveyer B to move in. Thisl conveyer passes around and connects sprocket-wheels t t', .one of which, b, is mounted on a short horizontal shaft journaled in suitable bear- I ings in the upper rails of the vsupporting-` is provided with a large pulley O, that is connectedvby a suitable belt c to and derives mo'-.

tion from a small'pulley c', secured on the adjacent end of a Vshaft CZ. *Shafty cZ pro- 1 vided with a large pulley which is vconnected l 'vented from iiying up ofi` of the `same by by a suitable belt d to and. derifves''motiorfi` latter is j ournaled in suitablebearings," prei ferably below and in the same planeas shaft.

from a small pulley on a drive-,shaft D, ,Whicl1 C.. The -end of the drive-shaft., Dg extends through its bearingsI on the sideofthe supporting-frame opposite theside onwhich the vbear down on the stave.

suitable pulley e, which is connected, A by means of a suitable twisted belt E, to a suitable pulley on a vertical spindle F, j ournaleu in bearings secured to the side of the machine adjacent to the end of the same farthest from the drive-shaft. This spindle F has the legs or bifurcations of the adjacent end of a long arm or beam pivotally mounted thereon, and

said beam has bearings in the bifurcations of its opposite free end for the vertically-disposed spindle g, to the upper end of which the cutter 7L is secured. Between its bearings said spindle g is provided with a small pulley 7L', that is connected by a suitable belt I-I to and derives motion from a larger pulley f, securelymounted on the spindle F near its 'upper end.

`The conveyer-chain B has lugs 'B2 projecting from links B thereof, which are located at statedintervals apart, which are adapted when the machine is in operation to engage the ends of the staves fed to the machine and push them longitudinally to and past the cutter h. In order to control the course of the staves from the point where the lugs B2 of the conveyer first engage the same to the opposite end of the machine, I have provided the bed @withalongitudinally-disposed gagebar I, which extends coterminous with and parallel to the runway a next the side thereof farthest from the cutter. While movin over the bed ofthe machine one longitudinaI edge of the stave is kept bearing against the gage-bar I by means of the pressure of several crook shaped leafsprings j, Whose straight end portion is removably fastened in a vertically-disposed stud J arising from a bracket J', that projects transversely from the upper side rails of the supporting-frame of the machine. In addition to the lateral pressure exerted by thesesprings a guard K, which partly encircles the cutter ZL, has a presser-foot N on its movable end which exerts aside 4pressure on the staves as they one at a time pass the cutter and keeps them true to their course and prevents their being drawn into the cutter.

The staves are held uponthe bed and premeans of a series of downwardly-pressing equidistant leaf-springs L, which are constructed similar to the, springs j, except that they are arranged s'o that one end thereof will The straight end of each of these springs'L is suitably secured in a transverse arm Z, projecting from the end. of

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suitable cylindricalshaped holders, which latter have screw-plates m, which are secured to the bed, preferably on the side of the gagebar farthest from the conveyer.

The .stave-blanks are usually of such width that the edges thereof engaged by the cutter project beyond and overhang the adjacent side edge of the bed of the machine., and when said staves engage the guard K said guard is forced laterally to permit the passage of the stave. To accomplish this result, the guard is made of a curved bar of metal which is curved so as to partly surround said cutter and has its outer end pivotally connected to the extremity of a stationary bracket K, secured to and projecting laterally from the side of the machine. The presser-foot N consists of a lobe that projects from the extremity of the guard toward the approach of the staves and has the edge thereof with which the side of the stave comes 1n contact tapered so that the stave as it comes in contact with the same forces the guard outward. This outer movement of said guard is resisted, and after thestave has passed it the return of said guard to its original position is effected by a leaf-spring o, one

end of which bears against the shoulder or back of the presser-foot andthe other end secured in a vertically-disposed stud projecting from the outer end of a transverse bracket O, secured to and projecting from the side of the supporting-frame.

The operation of my improved machine is such that as the stave moves into engagement withthe cutter the latter will be farthest .from the'adjacent side Aof the supporting-frame, and as the stave continues its movement past the cutter the latter gradually moves toward the adjacent edge of the bed ofthe machineuntil the stave has passed byit, and thus tapers the stave. The beam,

` 'in the end 'ofwhich the cutter-spindle is journaled,"is -|normally kept 4atthe limit of its movement away from the adjacent edge of the bed of the machine by means of a longitudinally-disposed Astrong leaf-springM, one

end of which is secured tothe supportingframe and the other bearing out against the downwardly-projecting lug on the end of an extension n of the upper bifurcation of the adjacent end of the beam, and the beam is moved'inward, so that the cutter will taper the passing stave by means of a face-cam which operates upon la friction-wheel p,

This face-'cam' consists of a'suitable wheel Q, which is mounted on a transverse' shaft g, located in the same vertical planebelow the axis of the wheel p and suitably journaled in bearings in the opposite `side'of the supporting-frame andin a sultable standard Q. The outer edge of wheel Q is provided with an outwardly-projectingV flange r, and the perimeter of the wheel has a cylindrical'band R surrounding it, one edge of which abuts against said flange 7' and the opposite edge of which extends beyond and overhangs the side of the wheel Q nearest the beam and is provided with, say, two symmetrical and oppositely-disposed corrugations or cam-surfaces S, against which wheel p'bears. The band R is secured'to the perimeter of wheel Q by means of screws 's s, which pass through transversely-slotted openings therein, and said band is adjustable transversely within the limits of said slotted openings by means of set-screws T, tapped transversely through the base of flange r.

Shaft g is driven by means of the endless de-v tachable link-chain conveyer B, whose lower stretch engages a suitable sprocket-wheel t on said shaft and causes the cam-band to travel at about the same speed as the conveyer.

What I claim as new is- 1. Astave-tapering machine comprising a suitable bed; means for conveying staves longitudinally therethrough; an automaticallyreturnable horizontally-disposed. beam pivoted at one end of said bed and extending along one side thereof; a cutter the axis of which is vertically disposed and which is j ournaled in the free end of said beam; a laterally-projecting bracket on the end'of said beam adjacent to said cutter; a cam engaging said bracket for moving the free end of said beam toward and fromthe line of travel on the stave, and means mounted on the pivotal shaft of said beam for transmitting motion to said cutter.

` 2. A stave-tapering machine comprising a suitable bed; means for conveying staves longitudinally therethrough; an automaticallyreturnable horizontally-disposed beam pivoted at one end of said bed and extending along one side thereof; a cutter the `axis of which is vertically disposed and which is j ournaled in the free end of said beam; a laterally-proj ecting -bracket on the end `of said beam adjacent to said cutter; a'face-cam engaging said bracket for moving the free end of said beam toward and from the line of travel of the stave; and means mounted on the pivotal shaft of said beam for transmitting motion to said cutter. i

3. A stave-tapering machine comprising a suitable bed; means for conveying staves longitudinally therethrough; a horizontally-disposed beam pivoted at one end of said bed andextending along one side thereof; a laterally-projecting bracket near the free end of said beam; a cam engaging said bracket for moving the free end of said beam toward and yfrom the line of travel of the stave; a spring for keeping said bracket in engagement-with saidcam; a rotary cutter journaled in the oscillating end of said beam; and means mount- IOO IIO

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ed on the pivotal shaft ofthe beam for transmitting motion tosaid cutter.

4. A stave-tapering machine comprising a suitable bed; means for conveying staves longitudinally therethrough; a beam pivoted at one end of said bed and extending along one side thereof; a cutter the axis of Which is vertically disposed and which is j ournaled in the free end of said beam; a laterally-projecting bracket on the end of said beam acent to said cutter; a guard for said cutter; cam-actuated means engaging said bracket for moving the free end of said beam toward and from the line of travel of the stave; and. means mounted on the pivotal shaft of said beam for transmitting motion to said cutter.

5. A stave-tapering machine comprising a suitable bed; means for conveying staves longitudinally therethrough; a beam pivoted at one end of said bed and extending along one side thereof a cutter the axis of Which is vertically disposed and Which is journaled in the free end of said beam; a laterally-projecting bracket on the end of said beam adjacent to said cutter; an automatically-returnable guard for said cutter; cam-actuated means engaging said bracket for moving the free end of said beam toward and from the line of travel of the stave; and means mounted on the pivotal shaft of said beam for transmitting motion to said cutter.

6. A stave-tapering machine comprising a j suitable bed; means for conveying staves lonf gitudinally therethrough; a beam pivoted at one end of said bed and extending along one side thereof; a cutter the axis of Which is vertically disposed and which is j ournaled in the free end of said beam; a laterally-projecting bracket on the end of said beam adjacent to said cutter; a jointed guard for said cutter; cam-actuated means engaging said bracket for moving the free end of said beam toward and from the line of travel of the stave; and

. means mounted on the pivotal shaft of said beam for transmitting motion to said cutter. 7. A stave-tapering machine comprising a suitable bed; means for conveyingT staves longitudinally therethrough; a beam pivoted aty one end of said bed and extending along one side thereof; a-cutter the axis of Which is vertically disposed and which is j ournaled in the free end of said beam a laterally-projecting bracket on the end of said beam adjacent to said cutter; a jointed automatically-returnable guard for said cutter; cam-actuated means engaging said bracket for moving the free end of said beam toward and from the line of travel of said stave and means mounted on the pivotal shaft of said beam for transmitting motion to said cutter.

8. A stave-tapering machine comprising a suitable bed; means for conveying staves longitudinally therethrough; a horizontallydisposed oscillatory beam extending along one side of said bed; a cutter the axis of which is vertically disposed and which is journaled in the free end of said beam; a laterally-projecting bracket on the end of said beam adjacent to said cutter; a guard for said cutter; cam-actuated means vengaging said bracket for moving the free end of said beam toward and from the line of travel of the stave; and means mounted on the pivotal shaft of said beam for transmitting motion to said cutter.

9. A stave-tapering machine comprising a suitable bed; means for conveying staves longitudinally therethrough; a horizontallydisposed oscillatory beam extending along one side of said bed; a cutter the axis of Which is vertically disposed and Which is j ournaled in the free end of said beam; a laterally-projecting bracket on the end-of said beam adjacent to said Cutter; cam-actuated means engaging said bracket for moving the free end of said beam toward and from the line of tra vel of the stave; and means mounted on the pivotal shaft of said beam for transmitting motion to said cutter.

10. A stave-tapering machine comprising a suitablebed.; means for conveying staves longitudinally therethrough; a horizontallydisposed oscillatory beam extending along one side of said bed; a cutter the axis of Which is vertically disposed and Which is journaled in the free end of said beam; a laterally-projecting bracket on the end of said beam adjacent to said cutter; a jointed guard for said cutter; cam-actuated means engaging said bracket for moving the vibratory end of said beam toward and from the line of travel ofthe stave; and means mounted on the pivotal shaft of said beam for transmitting vmotion to said cutter.

11. A stave-tapering machine comprising a suitable bed; means for conveying staves longitudinally therethrough; a verticallydisposed oscillatory beam extending along one side of said bed; a cutter the axis of Which is vertically disposed and Which is journaled in the free end of said beam; a `laterally-projecting bracket on the end of said beam adjacent to said cutter; a jointed automatically-returnable guard for said cutter; cam-actuated means engaging said bracket for moving the free end of said beam toward and from the line of travel of the stave and means mounted on the pivotal shaft of said beam for transmitting motion to said cutter.

l2. A stave-tapering machine comprising a suitable bed; means for conveying staves longitudinally therethrough; an automatically-returnable horizontally-disposed beam pivoted at one end of said bed and extending along one side thereof; a cutter the axis of Which is Avertically disposed and Which is j ournaled in the free end of said beam; a laterally-projectingbracket on the end of said beam adjacent to said cutter; a permanentlysecured guard for said cutter; a cam engaging said bracket for moving the free end of said beam toward and from the line of travel of the sta ve; and means mounted on the pivotal shaft of said beam for transmitting motion to said cutter.

13. A stave-tapering machine comprising a suitable bed; means for conveying staves longitudinally therethrough; an automatically-returnable horizontally-disposed beam pi voted at one end of said bed and extending along one side thereof; a cutter the axis of which is vertically disposed and Which is journaled in the free end of said beam; a lat-- erally-projecting bracket on the end of said beam adjacent to said cutter; a jointed guard for Said cutter having one end permanently secured; a cam engaging said bracket for mo ving the free end of said beam toward and from the line of tra vel of the stave; and means mounted on the pivotal shaft of said beam for transmitting motion to said cutter.

14. A stave-tapering machine comprising a suitable bed; means for conveying staves longitudinally therethrough; an automatically-returnable horizontally-disposed beam pi voted at one end of said bed and extending along one side thereof; a cutter the axis of which is vertically disposed and which is journaled in the free end of said beam; a lat- @rally-projecting bracket on the end of said beam adjacent to said cutter; a joi-nted guard for said cutter having one end permanently secured and the other end provided with a presser-foot; a cam engaging said bracket for mo ving the free end of said beam toward and from the line of travel of the stave; and means mounted on the pivotal shaft of said beam for transmitting motion to said cutter.

15. A stave-tapering machine comprising a suitablebed; means for conveying staves longitudinally therethrough; an automatically-returnable horizontally-disposed beam pivoted at one end of said bed and ournaled along one side thereof; a cutter the axis of which is vertically disposed and Which is journaled in the free end of said beam; a laterally-projecting bracket on the end of said beam adjacent to said cutter; a jointed guard for said cutter having one end permanently secured and its other end free and Which is automatically returnable; a cam engaging said bracket for moving the free end of said beam toward and from the line of travel of the stave; and means mounted on the pivotal shaft of said beam for transmitting motion to said cutter.

16. A stave-tapering machine comprising a suitable bed; means for conveying staves longitudinally therethrough; an automatically-returnable horizontally-disposed beam pivoted at one end of said bed and extending along one side thereof; a cutter the axis of Which is vertically disposed and Which is journaled in the free end of said beam; a laterally-projecting bracket on the end of said beam adjacent to said cutter; a jointed guard for said cutter having one end permanently secured and its free end provided With a presser-foot and automatically returnable; a

lcam engaging said bracket for moving the free end of said beam toward and from the line of travel of said stave; and means mounted on the pivotal shaft of said beam for transmitting motion to said cutter.

17. A stave-tapering machine comprising a suitable bed; means for conveying staves longitudinally therethrough; an automatically-returnable horizontally-disposed beam pivoted at one end of said bed and extending alon one side thereof; a cutter the axis of Whic is vertically dis osed and Whichis j ournaled in the free en of said beam; a laterally-projecting bracket on the end of said beam adjacent to said cutter; means mounted on the pivotal shaft of said beam for transmitting motion to said cutter; and a cam for moving the free end of said beam toward and from the line of travel of the stave; consisting of a Wheel, and a band on the periphery, the overhanging edge of Which adjacent to said beam is suitably cammed and engages said bracket.

18. A stave-tapering machine comprising a suitable bed; means for conveying staves longitudinally therethrough; an automatically-returnable horizontally-disposed beam pivoted at one end of said bed and extending along one side thereof; a cutter the axis of which is vertically disposed and Which is Ijournaled in the free end of said beam; a laterally-projecting bracket on the end of said beam adjacent to said cutter; a permanentlysecured guard for said cutter; means on the pivotal shaft of said beam for transmitting motion to said cutter; a cam for moving the free end of said beam toward and from the line of travel of the stave; consisting of a Wheel, and a laterally-disposed band on the periphery thereof; the overhanging edge of Which adjacent to said beam is suitably cammed and engages said bracket.

19. A stave-tapering machine comprising a suitable bed; means for conveying staves longitudinally therethrough; an automatically-returnable horizontally-disposed beam pivoted at one end of said bed and extending alonfr one side thereof; a cutter the axis of which is vertically disposed and Which is journaled in the free end of said beam; a laterally-projecting bracket on the end of said beam adjacent to said cutter; a permanentlysecured guard for said cutter; means mounted on the pivotal shaft of said beam for transmitting motion to said cutter; and a cam for moving the free end of said beam toward and from the line of travel of the stave, consisting of a Wheel having a circumferential flange, a band on the periphery thereof having transversely-slotted openings therein, the over- IOO hanging edge of said band adjacent to said beam being suitably cammed and is engaged by said bracket; screws extending through said openings for securing the band to the 5 Wheel, and set-screws tapped through said flange and engaging the edge of said band.

20. A stave-tapering machine comprising a suitable bed, an endless conveyer traversing the same longitudinally for conveying ro staves therethrough; leaf-springs for retaining the staves While in transit across said bed, a horizontally-disposed beam pivoted at one end to said bed extending along one side thereof; a cutter the axis of Which is verti- 15 cally disposed and which is journaled in the free end of said beam; a laterally-projecting bracket on the end of said beam adjacent to said cutter; a cam engaging said bracket for moving the free end 0I said beam toward and from the line of travel of said conveyer; and 2o means mounted on the `pivotal shaft of said beam for transmitting motion t0 said cutter.

In testimony whereof I have hereunto set my hand this 24th day of January, A. D. 1905.

WILLIAM I-I. VOSS.

Witnesses:

WILLIAM E. PULs, CI-IAs. E. MEAnNs. 

